LAB: Router LSAs
He're you'll be examening the Type 1 LSA in detail.
- For each area your router is connected to, count how many Type 1 LSAs exist in the LSDB
- Examine the Router LSA that your router is originating for the backbone area
- Compare the number of PointToPoint (Type 1) links and and Transit (Type 2) links
- Compare the number and contents of the of Stub (Type 3) links to the addressing on your links
- Inspect the point-to-point link in your Router LSA and node the LSA ID and the data
- Inspect the Router LSA of the router on the other side of your interface that was defined as a point-to-point link
- Compare the LSA ID and the data for the point-to-point link
- Inspect the stub advertisement that corresponds to the IP addressing on your point-to-point link for your point-to-point link
- Compare this advertisement to your neighbors for the same stub network
- Add your router number to the metric on your point-to-point link and reinspect your router LSA
- Compare this to your neighbors router LSA for the point-to-point network
- Inspect the your router LSAs for area 0.0.0.1, area 0.0.0.2 or area 0.0.0.3 (depending on which area your connected into)
- Which router is injecting external routing information into the area?
- Which routers are serving as ABRs for the area?
Stuck:
